A developmental study of the influence of task characteristics on motor overflow

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Addamo, Patricia K, Farrow, Maree, Hoy, K, Bradshaw, John ORCID: 0000-0002-8714-5231 and Georgiou-Karistianis, N (2009) A developmental study of the influence of task characteristics on motor overflow. Brain and Cognition, 69 (2). pp. 413-419. ISSN 0278-2626 (print) 1090-2147 (online)


Motor overflow refers to involuntary movement or muscle activity that may coincide with voluntary movement. This study examined factors influencing motor overflow in 17 children (8–11 years), and 17 adults (18–35 years). Participants performed a finger pressing task by exerting either 33% or 66% of their maximal force output using their dominant or non-dominant hand. Attention was manipulated by tactile stimulation to one or both hands. Overflow relative to the target force was greater in children compared to adults, and at the lower target force for both groups, but was not influenced by attentional stimulation. Childhood overflow was greater when the left-hand performed the task. Although an immature motor system may underlie an inability to suppress involuntary movement, childhood overflow may provide motor stabilization.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/7968
DOI 10.1016/j.bandc.2008.09.005
Official URL http://dx.doi.org/10.1016/j.bandc.2008.09.005
Subjects Historical > FOR Classification > 1106 Human Movement and Sports Science
Historical > FOR Classification > 1701 Psychology
Historical > Faculty/School/Research Centre/Department > Institute of Sport, Exercise and Active Living (ISEAL)
Keywords ResPubID22002. corpus callosum, motor cortex, motor development, motor learning, motor skills, corticospinal tract
Citations in Scopus 10 - View on Scopus
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